arm64: dts: qcom: sc7180-idp: add vdds supply to the DSI PHY

Add the (required) vdss-supply property to the DSI PHY node.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220706145412.1566011-3-dmitry.baryshkov@linaro.org

arch/arm64/boot/dts/qcom/sc7180-idp.dts

@@ -330,6 +330,7 @@ endpoint {
 
 &dsi_phy {
 	status = "okay";
+	vdds-supply = <&vreg_l4a_0p8>;
 };
 
 &mdp {